Microsoft Windows NT Server 4.0, Terminal Server Edition, is a Microsoft Windows NT operating system product that adds Windows-based terminal support to Windows NT Server and a "super-thin client" to the Windows family product line. Terminal Server brings the Windows experience to desktops that cannot run Windows today.
Microsoft Windows NT Server 4.0, Terminal Server Edition delivers the familiar Windows (Windows 95 and Windows NT Workstation) GUI to users of Windows-based terminals and legacy desktops, including Win16, Macintosh, and Unix, as well as Win32 application programming interface-based desktops. It supports the ability for users to disconnect from a session without logging off. This allows users to leave a session active, or running, while disconnected and then reconnect to the existing session from another machine or at another time. Microsoft Windows NT Server 4.0, Terminal Server Edition supports multiple simultaneous log on sessions from different desktops. This enables users to log on to multiple Terminal Servers or a single Terminal Server multiple times to do multiple tasks or to run multiple unique desktop sessions.